Racing Brake Rotors

Girodisc D2-224 Alfa Romeo / Maserati Rear Replacement Rotor Rings The Girodisc D2-224 Rear Replacement Rotor Rings are precision-engineered replacements for Girodisc two-piece rear rotors used on Alfa Romeo Quadrifoglio and Maserati applications. Manufactured to exacting standards, these rings restore your braking system’s performance and cooling efficiency while maintaining the fit and balance of your Girodisc setup. Precision-Machined for Performance and Durability Each Girodisc D2-224 rotor ring is cast in the USA using Girodisc’s proprietary iron alloy for maximum strength and heat resistance. The curved vane internal geometry functions as a centrifugal air pump, drawing cooling air through the disc to reduce fade and thermal stress. Sold in pairs, the rings include new hardware and are designed to bolt directly to your existing Girodisc aluminum hats for an easy installation. Features • Direct replacement for Girodisc Alfa Romeo and Maserati rear rotors• Proprietary cast iron alloy poured and machined in the USA• Curved vane design improves cooling and fade resistance• Includes complete hardware kit for installation• Reuses existing Girodisc aluminum hats• Maintains OEM fitment and brake balance• Sold/priced per pair• Not compatible with OEM or other aftermarket hats Vehicle Fitment • Alfa Romeo Giulia Quadrifoglio – Rear• Alfa Romeo Stelvio Quadrifoglio – Rear• Maserati Ghibli / Quattroporte / Levante (select trims) – Rear• Designed for Girodisc two-piece rotor systems• Will not fit OEM or non-Girodisc hats Girodisc D2-224 Alfa Romeo / Maserati Rear Replacement Rotor Rings FAQs Can I reuse my Girodisc aluminum hats? Yes. These rings are designed to bolt directly to your Girodisc hats using the included hardware. Are these compatible with OEM or other brands? No. Girodisc replacement rings are engineered specifically for Girodisc systems and will not fit OEM or other aftermarket hats. What’s included in the kit? Two iron rotor rings (left and right) and all new hardware for reassembly. Are the rotors directional? Yes. Each ring is labeled for left and right installation, ensuring proper airflow and cooling efficiency. What materials are used? Girodisc’s proprietary cast iron alloy provides consistent friction, high heat capacity, and excellent durability for both street and track use. Are they sold individually or as a pair? The Girodisc D2-224 Alfa Romeo / Maserati Rear Replacement Rotor Rings are sold and priced as a matched pair, complete with hardware. Keep your braking system performing like new with Girodisc D2-224 Rear Replacement Rotor Rings—precision-crafted in the USA for Alfa Romeo and Maserati performance vehicles demanding exceptional cooling, control, and longevity.

Girodisc D2-228 Lamborghini Huracán Super Trofeo Rear Replacement Rotor Rings The Girodisc D2-228 Rear Replacement Rotor Rings are designed as direct replacements for Girodisc two-piece rear rotors fitted to the Lamborghini Huracán Super Trofeo. Developed to handle the intense demands of GT competition, these rotor rings deliver exceptional cooling, strength, and consistency under the most punishing braking conditions. Race-Proven Design for the Huracán Super Trofeo Each Girodisc D2-228 ring is precision-machined from Girodisc’s proprietary cast iron alloy, poured and finished entirely in the USA. The curved vane internal structure acts as a centrifugal air pump, pulling cool air through the rotor to maintain stable temperatures and reduce fade during long stints. Sold as a pair and supplied with new hardware, these replacement rings bolt directly to your existing Girodisc aluminum hats for an exact OEM-quality fit. Features • Direct replacement for Girodisc Lamborghini Huracán Super Trofeo rear rotors• Manufactured from Girodisc proprietary cast iron alloy in the USA• Curved vane internal geometry improves airflow and cooling• Includes full hardware kit for easy installation• Reuses Girodisc aluminum hats• Optimized for race-level durability and consistency• Sold/priced per pair• Not compatible with OEM or non-Girodisc hats Vehicle Fitment • Lamborghini Huracán Super Trofeo (All model years) – Rear• Fits Girodisc two-piece rotor systems• Will not fit OEM or other aftermarket 2-piece rotors Girodisc D2-228 Lamborghini Huracán Super Trofeo Rear Replacement Rotor Rings FAQs Can I reuse my existing Girodisc hats? Yes. These replacement rings bolt directly onto your Girodisc aluminum hats using the supplied hardware. Are these compatible with OEM or factory 2-piece rotors? No. Girodisc rings are engineered exclusively for Girodisc systems and will not fit OEM or other aftermarket hats. What is included in the kit? Two replacement iron rotor rings (left and right) and a complete hardware set for installation. Are these rotors directional? Yes. Each rotor features directional curved vanes for efficient heat evacuation and cooling. Do they perform better than OEM? Yes. Girodisc rotors are lighter, run cooler, and maintain consistent braking under repeated heavy loads compared to OEM components. Are they sold as a set? Yes. The Girodisc D2-228 Lamborghini Huracán Super Trofeo Rear Replacement Rotor Rings are sold as a matched pair and include all required hardware. Maintain the championship-level braking performance of your Huracán Super Trofeo with Girodisc D2-228 Rear Replacement Rotor Rings—precision-built for endurance, cooling, and strength on the world’s toughest circuits.

Girodisc D2-232 Nissan GT-R Rear Replacement Rotor Rings The Girodisc D2-232 Rear Replacement Rotor Rings are precision-engineered replacements for Girodisc two-piece rear rotors on the Nissan GT-R. Designed to restore your braking system’s performance, these rotor rings deliver exceptional cooling, balance, and durability under extreme driving conditions—on both street and track. Engineered for the GT-R’s Performance Demands Each Girodisc D2-232 replacement ring is machined in the USA from Girodisc’s proprietary cast iron alloy, formulated for strength, heat capacity, and friction consistency. The curved vane internal geometry functions as a centrifugal air pump, pulling air through the disc to lower temperatures and prevent brake fade. This kit includes all necessary hardware and bolts directly to your existing Girodisc aluminum hats, ensuring a quick and precise installation. Features • Direct replacement for Girodisc Nissan GT-R rear rotors• Proprietary cast iron alloy poured and machined in the USA• Curved vane internal geometry for efficient cooling and fade resistance• Reuses existing Girodisc aluminum hats• Includes complete hardware kit for installation• Designed for maximum strength and balanced weight distribution• Sold/priced per pair ($880.00)• Not compatible with OEM or other aftermarket hats Vehicle Fitment • Nissan GT-R (R35) – Rear• Fits Girodisc two-piece rotor systems• Will not fit OEM or non-Girodisc two-piece rotors Girodisc D2-232 Nissan GT-R Rear Replacement Rotor Rings FAQs Can I reuse my existing Girodisc hats? Yes. These replacement rings are designed to bolt directly onto your Girodisc aluminum hats with the included hardware kit. What’s included in the package? Two iron rotor rings (left and right) and all necessary mounting hardware for a complete reinstallation. Are these rotors directional? Yes. Each rotor features directional curved vanes—be sure to install them correctly for optimal airflow and cooling performance. Will these fit OEM or other aftermarket systems? No. These replacement rings are exclusively engineered for Girodisc two-piece rotors and are not compatible with factory or non-Girodisc hats. How do these compare to OEM rotors? Girodisc rotors offer improved cooling, reduced weight, and more consistent braking under repeated hard use compared to OEM components. Are they sold individually or as a set? The Girodisc D2-232 Nissan GT-R Rear Replacement Rotor Rings are sold and priced per pair and include all required hardware. Restore the precision and performance of your GT-R’s braking system with Girodisc D2-232 Rear Replacement Rotor Rings—crafted in the USA for superior cooling, balance, and endurance.

Girodisc D2-238 Porsche 991 Cup / GT4 Clubsport Rear Replacement Rotor Rings (380x30) The Girodisc D2-238 Rear Replacement Rotor Rings are precision-engineered replacements for Girodisc two-piece rear rotors on the Porsche 991 Cup Car and Cayman GT4 Clubsport. Designed to restore factory braking performance and cooling efficiency, these 380x30mm rotor rings are built for the demands of professional motorsport. Race-Ready Engineering. Factory-Perfect Fit. Manufactured in the USA from Girodisc’s proprietary cast iron alloy, each rotor ring is optimized for strength, consistency, and high thermal capacity. The curved vane internal design acts as a centrifugal pump, forcing air through the rotor to maximize cooling and minimize fade. Sold as a pair, the kit includes all new hardware and is designed to bolt directly to your existing Girodisc aluminum hats for a simple, precise installation. Features • Size: 380mm x 30mm• Direct replacement rings for Girodisc Porsche 991 Cup and GT4 Clubsport rear rotors• Cast from Girodisc proprietary high-carbon iron alloy in the USA• Curved vane internal geometry for improved airflow and cooling• Includes all new hardware (drive pins, washers, and bolts)• Reuses Girodisc aluminum hats• Not compatible with OEM or non-Girodisc hats• Sold/priced per pair Vehicle Fitment • Porsche 991 GT3 Cup (All Years) – Rear• Porsche Cayman GT4 Clubsport (981 & 982) – Rear• Designed for Girodisc two-piece rotor systems• Will not fit OEM two-piece rotors or other aftermarket hats Girodisc D2-238 Porsche 991 Cup / GT4 Clubsport Rear Replacement Rings FAQs Can I reuse my aluminum hats? Yes. These replacement rings bolt directly to your existing Girodisc aluminum hats with the supplied hardware. Do these fit OEM or factory rotors? No. Girodisc replacement rings are engineered specifically for Girodisc two-piece systems and are not compatible with OEM or other aftermarket hats. What’s included in the package? Two iron rotor rings (left and right) and a full hardware kit for reassembly. Are the rotors directional? Yes. Each rotor features directional curved vanes for optimal airflow and cooling efficiency—ensure correct orientation during installation. Are they sold individually or as a set? The Girodisc D2-238 Rear Replacement Rotor Rings are sold and priced per pair, complete with hardware. What benefits do these offer over OEM rotors? Girodisc rotors reduce unsprung weight, improve cooling efficiency, and maintain consistent pedal feel and braking balance under the harshest track conditions. Maintain championship-level braking performance with Girodisc D2-238 380x30mm Rear Replacement Rotor Rings—crafted in the USA to deliver maximum precision, cooling, and reliability for Porsche 991 Cup and GT4 Clubsport race cars.

REPLACEMENT ROTOR RINGS ONLY. INCLUDES NEW INSTALLATION HARDWARE. DOES NOT INCLUDE ALUMINUM HATS. Competition Motorsport is an authorized dealer for Girodisc products. As one of the largest stocking dealers in the country, we ship most Girodisc products the same or next business day to ensure we meet your delivery deadline. These Girodisc replacement rotor rings are direct replacements for the iron discs on your Girodisc two-piece rotors, and no modifications are necessary. New cap screws and washers are included with these replacement rotors. We do not recommend re-using the old hardware. The replacement rotor rings and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by Girodisc in the USA to their own specifications and are cadmium plated for corrosion resistance. The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat. The pins are secured by grade 12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors. The two-piece Girodisc design allows for rotor ring-only replacement to minimize replacement costs and deliver outstanding performance and cooling. Sold/priced per pair.

Girodisc Corvette C8 Z51 Rear Rotor Rings The Girodisc D2-242 Rear Replacement Rotor Rings are precision-engineered replacements for Girodisc two-piece rotors on the Chevrolet Corvette C8 Z51. Designed for seamless fitment and peak braking performance, these iron rings restore the stopping power, cooling efficiency, and balanced pedal feel your Girodisc system was built to deliver. Restore Performance with Genuine Girodisc Components Manufactured and machined entirely in the USA, each rotor ring is cast from Girodisc’s proprietary iron alloy for superior strength, thermal stability, and friction consistency. The curved vane internal structure acts as a centrifugal air pump, pulling cooling air through the rotor to maintain ideal temperatures under repeated hard braking. Sold in pairs and supplied with new hardware, these rings bolt directly to your existing Girodisc aluminum hats with no modification required. Features • Direct replacement for Girodisc Corvette C8 Z51 rear rotors• Proprietary cast iron alloy poured and machined in the USA• Curved vane internal geometry for enhanced cooling and fade resistance• Includes full replacement hardware kit for installation• Reuses Girodisc aluminum hats• Maintains OEM fitment and brake bias• Sold/priced per pair• Not compatible with OEM or other aftermarket hats Vehicle Fitment • Chevrolet Corvette C8 Z51 (All Years) – Rear• Designed for Girodisc two-piece rotor systems• Will not fit OEM two-piece rotors or other aftermarket hats Girodisc D2-242 Corvette C8 Z51 Rear Replacement Rotor Rings FAQs Can I reuse my Girodisc aluminum hats? Yes. These replacement rings are designed to bolt directly onto your existing Girodisc hats using the included hardware. What’s included in the kit? Two iron rotor rings (left and right) and all necessary hardware for reassembly. Do these fit OEM rotors or other brands? No. Girodisc replacement rings are engineered exclusively for Girodisc systems and are not compatible with OEM or other aftermarket hats. Are the rotors directional? Yes. Each ring is labeled left and right to ensure proper airflow through the curved vane cooling system. Do these improve performance over OEM? Yes. Girodisc rotors are lighter, run cooler, and offer more consistent braking under track or spirited driving conditions compared to factory components. Are they sold as a set? Yes. The Girodisc D2-242 Corvette C8 Z51 Rear Replacement Rotor Rings are sold and priced per pair and include all required hardware. Maintain the performance and precision of your braking system with Girodisc D2-242 Rear Replacement Rotor Rings—engineered for the Corvette C8 Z51 to deliver race-bred strength, superior cooling, and consistent stopping power lap after lap.

Girodisc Mercedes E63, GT53 Rear Replacement Rings (Dimpled & Slotted) Upgrade your AMG’s braking confidence with Girodisc dimpled and slotted rear replacement rings for the Mercedes E63 and GT53. These high-performance rotors are direct replacements for Girodisc’s two-piece assemblies, designed to restore race-ready bite, consistent thermal control, and responsive pedal feedback on both street and track. Vehicle Fitment Compatible with:• Mercedes-AMG E63 (W213)• Mercedes-AMG GT53 (C257 / X290)Note: These are replacement friction rings only. They mount directly to existing Girodisc aluminum hats using the included hardware kit. Precision Engineering Meets AMG Performance The Girodisc D2-248DS rings are machined from high-carbon cast iron and feature a dimpled and slotted face pattern for enhanced pad cleaning and outgassing under extreme heat. The curved internal vanes pump air through the rotor to maintain stable temperatures and reduce fade. Made entirely in the USA, Girodisc rings are the ultimate solution for repeatable, fade-free braking performance. Features • Dimpled and slotted surface for improved pad bite and cooling• Direct replacements for Girodisc two-piece rear rotor assemblies• High-carbon iron construction with directional curved vanes• Includes full replacement hardware kit• Designed for Girodisc aluminum hats only• Precision-machined and balanced in the USA• Sold/priced per pair Specifications • Application: Rear axle• Vehicles: Mercedes-AMG E63, GT53• Material: High-carbon cast iron• Design: Dimpled and slotted• Includes new hardware• Made in the USA• Sold/priced per pair Girodisc D2-248DS Replacement Ring FAQs What’s the advantage of dimpled and slotted rotors? The combination design helps evacuate gases and debris from between the pad and rotor, improving initial bite and maintaining friction consistency under heavy braking. Can I reuse my Girodisc aluminum hats? Yes, these rings are designed to bolt directly to your existing Girodisc hats using the supplied hardware kit. Do they fit OEM Mercedes rotors? No. These replacement rings are engineered exclusively for Girodisc two-piece rotor systems. Are these suitable for daily driving? Absolutely. Despite their motorsport pedigree, Girodisc rings maintain smooth, quiet operation during normal street use while offering superior heat management for spirited or track driving. Give your Mercedes-AMG E63 or GT53 the braking precision it deserves with Girodisc D2-248DS dimpled and slotted replacement rings — the perfect balance of street comfort and track endurance.

Girodisc D2-250 Porsche GT2 RS Clubsport Rear Replacement Rotor Rings The Girodisc D2-250 Rear Replacement Rotor Rings are precision-engineered replacements for Girodisc two-piece rotors fitted to the Porsche 991 GT2 RS Clubsport. Designed to match the performance and fitment of the original Girodisc system, these iron rings restore braking power, cooling efficiency, and pedal consistency for track-dominant Porsche applications. Built for the Demands of Motorsport Machined and cast in the USA, each Girodisc D2-250 rotor ring is made from Girodisc’s proprietary cast iron alloy, formulated for superior strength and thermal stability under repeated high-load braking. The curved vane internal geometry functions as a centrifugal air pump, improving airflow through the rotor and dramatically reducing temperatures. Sold as a pair, these replacement rings include all necessary hardware and bolt directly onto your existing Girodisc aluminum hats. Features • Direct replacement for Girodisc Porsche 991 GT2 RS Clubsport rear rotors• Proprietary cast iron alloy for consistent friction and durability• Curved vane internal geometry for maximum cooling and airflow• Reuses Girodisc aluminum hats• Includes complete hardware kit for installation• Engineered and machined in the USA• Sold/priced per pair• Not compatible with OEM or other aftermarket hats Vehicle Fitment • Porsche 991 GT2 RS Clubsport – Rear• Fits Girodisc two-piece rotor systems using D2-250 configuration• Will not fit OEM or non-Girodisc hats Girodisc D2-250 Porsche GT2 RS Clubsport Rear Replacement Rotor Rings FAQs Do these rotors fit OEM hats or hardware? No. Girodisc replacement rings are designed specifically for Girodisc aluminum hats and should not be used with OEM or other aftermarket hardware. What’s included in the package? Each set includes two iron rotor rings (left and right) and all necessary mounting hardware for reassembly. Can I reuse my existing Girodisc hats? Yes. These rings are designed to bolt directly to your current Girodisc aluminum hats, preserving the same lightweight two-piece configuration. What are the benefits of the curved vane design? Curved vanes pull air through the rotor as it spins, helping to regulate temperature and prevent fade during heavy braking—ideal for track environments. Are these rotors directional? Yes. Each ring is marked left and right to ensure proper airflow through the curved vane system. Are they sold individually or as a set? The Girodisc D2-250 Porsche GT2 RS Clubsport Rear Replacement Rotor Rings are sold and priced per pair, including hardware. Maintain peak braking performance on your Porsche GT2 RS Clubsport with Girodisc D2-250 Replacement Rotor Rings—precision-built to the same racing-grade standards that define Girodisc performance systems.

Girodisc D2-260DS Mercedes G63 Rear Replacement Rotor Rings (Dimpled & Slotted) The Girodisc D2-260DS Replacement Rotor Rings are precision-built replacements for the Girodisc two-piece rear rotors on the Mercedes G63 AMG. Featuring a dimpled and slotted surface for enhanced pad bite and heat dissipation, these 2-piece rotor rings restore peak braking performance while maintaining the quality and balance of your existing Girodisc system. Factory Fit. Race-Bred Performance. These 2-piece rotor rings are made from Girodisc’s proprietary cast iron alloy, poured and machined in the USA to exacting tolerances. The curved-vane internal geometry functions as a centrifugal air pump, drawing cool air through the disc to minimize fade and cracking. The dimpled and slotted surface helps evacuate gas and dust, improving pad contact and consistent braking feel. All new hardware is included, allowing for a quick and seamless reassembly onto your Girodisc aluminum hats. Features • Direct replacement for Girodisc Mercedes G63 rear rotors• Dimpled and slotted friction surface improves cooling and pad bite• Proprietary cast iron alloy poured and machined in the USA• Curved-vane internal geometry for efficient heat dissipation• Includes full hardware kit for installation• Reuses your existing Girodisc aluminum hats• Sold/priced per pair• Not compatible with OEM or non-Girodisc hats Vehicle Fitment • Mercedes-AMG G63 (all applicable years) – Rear• Designed for Girodisc 2-piece rotor systems• Will not fit OEM 2-piece rotors or non-Girodisc hats Girodisc D2-260DS Mercedes G63 Rear Replacement Rotor Rings FAQs What’s included with these replacement rings? The kit includes two dimpled and slotted iron rotor rings (left and right) along with new hardware for mounting to your existing Girodisc hats. Can I reuse my original hats? Yes. These replacement rings are designed to bolt directly to your Girodisc aluminum hats, preserving the fit and balance of your existing system. Are these compatible with OEM or other brands? No. Girodisc replacement rings are engineered exclusively for use with Girodisc hats and hardware. What are the advantages of the dimpled and slotted surface? It enhances braking by improving pad bite, clearing gas and dust, and reducing the risk of glazing during repeated high-temperature stops. Do these include curved vane internal design? Yes. The curved vane structure increases airflow through the disc, keeping rotor temperatures lower during spirited driving or track use. Are they sold individually or as a pair? The Girodisc D2-260DS Mercedes G63 Rear Replacement Rotor Rings are sold as a matched left/right pair and include all necessary mounting hardware. Keep your braking system in peak condition with Girodisc D2-260DS Dimpled & Slotted Rear Replacement Rings—precision-engineered for the Mercedes G63 and built to deliver the cooling, bite, and performance your Girodisc system is known for.

Girodisc Chevrolet Camaro (6th Gen) Rear Replacement Rings Maintain the razor-sharp braking performance of your 6th Gen Camaro with Girodisc 365mm rear replacement rings. These precision-engineered rings are direct replacements for Girodisc two-piece rotors, restoring the braking consistency and cooling efficiency demanded by track and street enthusiasts alike. Vehicle Fitment Compatible with:• 2016–2024 Chevrolet Camaro SS• 2017–2024 Chevrolet Camaro ZL1• 2019–2024 Chevrolet Camaro ZL1 1LE• 2016–2024 Chevrolet Camaro LT1 (with performance brake package)Note: These are friction rings only. They attach directly to existing Girodisc aluminum hats using the included floating hardware kit. Track-Tested Engineering Every Girodisc rotor ring is cast from a proprietary high-carbon iron alloy and precision-machined in the USA. The curved internal vanes function as a centrifugal pump, pulling air through the disc to dissipate heat efficiently during hard braking. This design reduces fade and ensures consistent pedal feel through repeated heat cycles—whether you’re carving corners or pushing limits at the track. Features • Direct replacement for Girodisc 365mm rear rotors• Fits 6th Gen Camaro SS, ZL1, ZL1 1LE, and LT1 performance packages• High-carbon iron alloy ensures strength and stability under heat• Directional curved vane design improves cooling efficiency• Fully machined, balanced, and assembled in the USA• Includes new floating hardware kit• Sold/priced per pair Specifications • Diameter: 365mm• Position: Rear• Material: High-carbon cast iron• Includes: Two rotor rings and complete hardware kit• Made in the USA• Sold/priced per pair Girodisc D2-271 Replacement Ring FAQs Do these rings fit OEM Camaro rotors? No. These are designed exclusively for Girodisc two-piece rotor systems or compatible aftermarket hats. Is installation straightforward? Yes. These rings bolt directly to your existing Girodisc hats using the provided hardware. No modifications are required. Are these rotors suitable for track use? Absolutely. Girodisc rings are track-proven, offering superior heat management and resistance to warping or cracking. Can I reuse my current hardware? We recommend using the new hardware kit included with the rings for maximum safety and performance. Rebuild your Camaro’s braking system the right way with Girodisc D2-271 rear replacement rings — designed for performance, precision, and unmatched stopping confidence.

Girodisc Porsche 992 GT3, GT4 RS Rear Replacement Rings Keep your Porsche’s braking system performing at its best with Girodisc D2-272 rear replacement rings. Designed as direct replacements for Girodisc two-piece rotor assemblies, these high-performance 380mm rings restore cooling efficiency, reduce fade, and maintain optimal pedal feel lap after lap. Vehicle Fitment Compatible with:• 2022–2025 Porsche 911 GT3 (992)• 2023–2025 Porsche 718 Cayman GT4 RS• 2023–2025 Porsche 718 Spyder RSNote: These are friction rings only. They attach to existing Girodisc aluminum hats using the supplied floating hardware kit. Precision-Crafted for Track and Street Each Girodisc rotor ring is cast from a proprietary high-carbon iron alloy and machined in-house in the USA. The 72 curved directional vanes are designed to act as a centrifugal pump, pulling air through the disc to maximize cooling and stability under extreme heat. Whether you’re attacking corners on a race circuit or pushing hard on mountain roads, Girodisc rotors deliver consistent, confident braking. Features • Direct replacements for Girodisc 380mm rear rotors• Fits Porsche 992 GT3, GT4 RS, and Spyder RS models• Proprietary high-carbon iron construction for superior heat resistance• Curved directional vanes enhance airflow and cooling• Precision machined, balanced, and finished in the USA• Includes new floating hardware kit• Sold/priced per pair Specifications • Diameter: 380mm• Position: Rear• Material: High-carbon cast iron• Includes: Two rotor rings and full hardware kit• Made in the USA• Sold/priced per pair Girodisc D2-272 Replacement Ring FAQs Are these compatible with OEM Porsche rotors? No. These rings are designed for Girodisc two-piece systems and will not fit factory one-piece or PCCB rotors. Do the rings come with hardware? Yes. Each set includes a full floating hardware kit with pins, bolts, and washers for an easy installation. Can these be used for track driving? Absolutely. Girodisc rotors are race-proven and built to handle sustained high temperatures without warping or fade. How often should replacement rings be changed? Replace them when the rotor reaches its minimum thickness or shows cracking that extends to the edge of the disc. Renew your Porsche’s braking confidence with Girodisc D2-272 rear replacement rings — precision-built for the 992 GT3 and GT4 RS, combining world-class craftsmanship with proven track performance.

D2-282 Girodisc 370mm Rear Replacement Rings Rings only, sold as a pair with new hardware. Reuse your existing Girodisc aluminum hats. These rings are engineered for Girodisc hats only and will not fit OE or other aftermarket hats. Vehicle Fitment BMW G87 M2 – Rear (for A2-282 kits) BMW G80/G81 M3 – Rear (for A2-282 kits) BMW G82/G83 M4 – Rear (for A2-282 kits) Easy Service, Consistent Performance High-carbon iron rings with 48 curved vanes provide reliable cooling and durability. New pins, clips, and Belleville washers restore proper float and clamping force. Features Replacement rings only; includes hardware Direct fit for Girodisc A2-282 rear rotor kits High-carbon iron; USA-poured and machined 48-vane internal design for airflow Sold/priced per pair D2-282 FAQs Minimum thickness? Replace at 22 mm or sooner if a crack reaches the outer edge. Do I reuse hardware? No — always install the supplied new hardware and torque per instructions. Do I need to re-bed pads? Yes — re-bed after ring installation to stabilize the friction layer.

Porsche 992 GT3 Cup Front Replacement Rings Restore world-class braking performance to your Porsche 992 GT3 Cup with the Girodisc D1-287 Front Replacement Rings. Engineered for endurance and precision, these 410x36mm iron rotor rings are direct replacements for Girodisc two-piece front rotors used in competition or iron conversion applications. Built to withstand extreme thermal loads and track punishment, the D1-287 rings deliver consistent, fade-free braking lap after lap. Each ring is machined from Girodisc’s proprietary U.S.-poured high-carbon cast iron, chosen for its exceptional strength, heat resistance, and stability. Designed with 48 curved directional vanes, these rotors channel air efficiently for superior cooling and reduced thermal stress. The result is braking performance you can rely on through every corner, every lap, every session. Features and Benefits Direct replacement rings for Girodisc 992 GT3 Cup 410x36mm two-piece front rotors Machined from proprietary U.S.-poured high-carbon cast iron for maximum thermal stability 48 curved directional vanes for optimal cooling and consistent performance Lightweight two-piece floating design reduces unsprung mass and enhances handling Includes all new hardware: drive pins, bolts, and washers Precision machined, balanced, and assembled in the USA Vehicle Fitment 2022+ Porsche 911 GT3 Cup (992) These replacement rings are designed exclusively for Girodisc aluminum hats. They will not fit OEM or other aftermarket hat systems. This set replaces the original Girodisc front assemblies used in GT3 Cup and iron conversion configurations. Why Choose Girodisc Girodisc has set the standard for performance braking systems through precision engineering and uncompromising quality. Each rotor ring is developed for motorsport environments, ensuring consistent friction characteristics and resistance to thermal cracking under the most demanding conditions. With the D1-287 rings installed, your Porsche 992 GT3 Cup will brake with the same confidence and control that define true race-winning performance. FAQs Do these include the aluminum hats?No. The D1-287 kit includes only the iron rotor rings and a complete hardware kit. Your existing Girodisc hats are reused. Can I install these with factory Porsche rotors?No. Girodisc replacement rings are engineered specifically for Girodisc hats and will not fit OEM or other aftermarket systems. Are the rotors directional?Yes. Each ring features curved internal vanes that must be installed on the correct side for optimal airflow and cooling efficiency. What’s included?Two 410x36mm front rotor rings (left and right) and a full hardware kit including new drive pins, bolts, and washers. Ready to Refresh? Bring your Porsche 992 GT3 Cup back to full braking potential with Girodisc D1-287 Front Replacement Rings. Designed for uncompromising performance on the track, these rotor rings deliver the cooling, balance, and durability needed for every race-winning lap. Order your set today from Competition Motorsport and keep your GT3 Cup braking with factory precision and motorsport strength.

Porsche 992 GT3 Cup Rear Replacement Rings Keep your Porsche 992 GT3 Cup performing at its peak with the Girodisc D2-287 Rear Replacement Rings. Designed for serious racers and track-day purists, these high-performance 380x34mm iron rings are direct replacements for Girodisc’s two-piece rear rotors, offering the same exceptional strength, cooling, and balance demanded by professional motorsport. Each ring is machined from Girodisc’s proprietary high-carbon cast iron alloy, poured and finished entirely in the USA. With 48 curved directional vanes and a floating two-piece design, these replacement rings deliver consistent braking performance, improved heat management, and reduced unsprung weight—essential for precision braking on the track. Features and Benefits Direct replacement rings for Girodisc 992 GT3 Cup rear two-piece rotors Machined from proprietary U.S.-poured high-carbon cast iron for superior heat control 48 curved directional vanes maximize airflow and cooling efficiency Lightweight two-piece design minimizes unsprung mass for improved chassis response Includes new hardware: drive pins, bolts, and washers Fully machined, balanced, and assembled in the USA Vehicle Fitment 2022+ Porsche 911 GT3 Cup (992) These rings are designed exclusively for Girodisc aluminum hats and are not compatible with OEM or other aftermarket hat systems. They are a direct replacement for Girodisc rear assemblies used in competition or iron conversion setups. Why Choose Girodisc Girodisc is the benchmark in motorsport braking systems. Built for the extreme thermal loads of track racing, every rotor is precision-balanced and engineered to maintain consistent pad contact, cooling efficiency, and braking stability. The D2-287 replacement rings bring your Girodisc system back to new, ensuring your GT3 Cup continues braking as hard as it accelerates. FAQs Do these include the aluminum hats?No. The D2-287 kit includes only the rotor rings and new hardware. Your existing Girodisc hats are reused. Can these be used with factory Porsche rotors?No. Girodisc replacement rings are designed specifically for Girodisc two-piece rotors and will not fit OEM or other aftermarket systems. Are these rotors directional?Yes. Each rotor ring features curved internal vanes and must be installed on the correct side for proper airflow and cooling. What’s included?A pair of rear rotor rings (left and right) and a full hardware kit with drive pins, bolts, and washers. Ready to Refresh? Restore your Porsche 992 GT3 Cup’s braking system to peak performance with the Girodisc D2-287 Rear Replacement Rings. Designed for race conditions and precision driving, these rings deliver the strength, balance, and cooling efficiency your car deserves. Order your set today from Competition Motorsport and get back to dominating every corner and braking zone.

Lamborghini Huracán STO Rear Replacement Rings Maintain the world-class braking performance of your Lamborghini Huracán STO with Girodisc Rear Replacement Rings. These precision-engineered rings are designed to replace only the iron rotor surface, allowing you to reuse your Girodisc aluminum hats and restore peak braking efficiency with minimal expense. Each pair includes new hardware for a precise, secure installation. Race-Bred Performance, Track-Ready Design Machined in the USA from Girodisc’s proprietary cast iron, these replacement rings feature a curved vane design that actively channels cooling air through the rotor. The result is improved heat management, reduced fade, and consistent pedal feel during demanding conditions on both street and track. Features Sold as a pair and includes new replacement hardware Direct replacement for Girodisc two-piece rear rotors Reuse your existing Girodisc aluminum hats for cost savings Proprietary U.S.-poured cast iron for superior strength and thermal control Curved vane internal design for maximum cooling efficiency Fully machined and assembled in the USA Vehicle Fitment 2021–2025 Lamborghini Huracán STO (rear axle equipped with Girodisc two-piece rotors) Lamborghini Huracán STO Rear Replacement Rings FAQs: Do these fit OEM or factory two-piece rotors? No. These rings are specifically designed for Girodisc two-piece rotor systems and will not fit OEM or other aftermarket rotor assemblies. What’s included in the box? Two replacement rings, new hardware, and detailed installation instructions. Your Girodisc aluminum hats are reused. When should I replace my Girodisc rings? Replace when the rotors reach minimum thickness or if you notice heat checking, cracks, or excessive wear. Do I need to replace both sides at the same time? Yes. Always replace rings in pairs to maintain balanced braking and even wear. Can I install these myself? Installation can be done by experienced DIYers, but Girodisc recommends professional installation to ensure correct torque and safety. Do these rings come balanced? Yes. Girodisc replacement rings are pre-balanced to factory specifications for vibration-free performance. Please note: Girodisc replacement rings are designed for use only with Girodisc hats unless otherwise specified.

Toyota GR Supra, BMW 345mm Rear Replacement Rings Bring your Toyota GR Supra or BMW back to peak braking performance with the Girodisc D2-307 Rear Replacement Rings. These high-performance iron rotor rings are engineered as direct replacements for your Girodisc two-piece rotors, delivering exceptional cooling, reduced weight, and race-proven reliability for street and track use alike. When your Girodisc rotors reach their wear limit, these precision-machined rings let you refresh your braking system without buying new hats. Each ring is crafted from Girodisc’s proprietary U.S.-poured high-carbon cast iron, designed for extreme heat resistance and consistent braking under load. Whether you’re attacking corners on the track or driving hard on the street, Girodisc ensures your braking stays sharp, stable, and fade-free. Features and Benefits Direct replacements for Girodisc 345mm two-piece rear rotors Machined from proprietary high-carbon cast iron for superior durability 48 curved directional vanes optimize airflow and heat dissipation Lightweight design minimizes unsprung and rotational mass Includes all new drive pins, bolts, and washers for installation Fully machined, balanced, and assembled in the USA Vehicle Fitment 2020+ Toyota GR Supra (A90 / A91) 2019+ BMW Z4 M40i BMW G29 Platform (B58 engine) These rings are designed exclusively for Girodisc aluminum hats and will not fit OEM or other aftermarket rotor hats. Why Choose Girodisc Girodisc brake systems are the benchmark for performance and reliability in motorsport-inspired braking. The D2-307 replacement rings allow you to maintain top-tier braking performance at a fraction of the cost of full rotor replacement. Every Girodisc component is precision engineered, race-tested, and built to handle extreme thermal stress with consistent, confident braking lap after lap. FAQs Do these include the aluminum hats?No. The D2-307 kit includes only the iron rotor rings and a new hardware kit. Your existing Girodisc hats are reused. Can these be used with factory rotors?No. Girodisc replacement rings are designed exclusively for Girodisc two-piece rotors and will not bolt to OEM or other aftermarket hats. Are these rotors directional?Yes. Each rotor ring features curved internal vanes and must be installed on the correct side for optimal airflow and cooling efficiency. What comes in the box?A pair of 345mm rear rotor rings (left and right) plus all new drive pins, bolts, and washers. Ready to Upgrade? When it’s time to restore the full stopping power of your Toyota GR Supra or BMW Z4, the Girodisc D2-307 Rear Replacement Rings deliver uncompromising quality, cooling performance, and long-term durability. Order your set today from Competition Motorsport and keep your braking performance at its absolute best.